On November 9, 2007, the FDA announced that it had approved Zyrtec-D, a product which contains cetirizine HCl and pseudoephedrine HCl, for nonprescription use. Sales of the Zyrtec-D are subject to restrictions in the Combat Methamphetamine Epidemic Act. This law places restrictions on the sale of products containing pseudoephedrine, such as limiting the amount that an individual can purchase, and imposing record keeping requirements on the retail establishments that sell the product and that it be located with the pharmacist.

Nonprescription Zyrtec-D was approved for the relief of symptoms due to hay fever or other upper respiratory allergies such as runny nose, sneezing, itchy, watery eyes, itching of the nose or throat, and nasal congestion. Zyrtec-D is also approved for reducing swelling of nasal passages, for relief of sinus congestion and pressure, and for restoring freer breathing through the nose due to hay fever and other upper respiratory allergies. Zyrtec-D is not approved for the relief of itching due to hives.